Center extension table with hinged leaves and actuated rims



March 17, 1953 v. MAREEK 2,631,910

CENTER EXTENSION TABLE WITH HINGED LEAVES AND ACTUATED RIMS Filed Nov. 26, 1949 I I 1' I3 76 75 in-Illinw M'fnesses Patented Mar. 17, 1953 CENTER EXTENSION TABLE WITH HINGED LEAVES AND ACTUATED RIMS Vladimir Mareek, Brunn, Czechoslovakia, assignor to United UP Works, National Corporation, Brunn, Czechoslovakia Application November 26, 1949, Serial No. 129,633

In Czechoslovakia September 19, 1949 3 Claims.

The present invention relates to a telescope table having a divided top plate joined with a rim. When separating such a table and filling the central portion of the top plate with a filling member, known per se, the rim of the table in the area of the filling member presents a gap.

The object of the invention is an arrangement of the telescope table in which the gaps of the rim are filled automatically so that the appearance of the separated table is more perfect.

The arrangement in the table, according to this invention, consists in that a tiltable filling member is, by means of a mechanism, connected with movable filling rim parts which by turning the filling member fill up the gap formed in the rim by separating the halves of the top plate.

The mechanism for transmitting movement from the tiltable filling member onto the filling rim parts may be realized in different ways and is described more in detail with reference to the embodiments which are illustrated by way of example in the accompanying drawings in which:

Fig. 1 is a top view looking down upon the table after the top plate has been partly separated and showing on one side the partially con cealed guiding ledges;

Fig. 2 is a vertical sectional view taken through line II-II of Fig. 1;

Fig. 3 is a vertical sectional view taken along III-III of Fig. 1;

Fig. 4 is a section taken along the line IIII of Fig. 1, showing, however, the filling member partially tilted upwardly;

Fig. 5 is a section similar to Fig. 4, but showing the filling member of the table completely elevated;

Fig. 6 illustrates in an enlarged scale a side view of the mechanism for pushing out the filling rim parts of the table showing how the mechanism consists of two cams eccentrically and rigidly attached to a common j ournal;

Fig. 7 is a side view similar to Fig. 6, but after both of the eccentric cams have turned by 180 degrees;

Fig. 8 is a view looking down on Fig. 7;

Fig. 9 is a side view of another mechanism for pushing out the filling rim parts of the table;

Fig. 10 is a corresponding view to Fig. 9, viewed from above; and

Fig. 11 is a perspective view of the table according to the invention, after the separation of both the halves of the table top plate from each other and with unfolded filling members.

As shown in Figs. 1 to 4, inclusive, the table is supported by four legs I, of which one pair on the shorter sides of the table each is connected by cross plates 2 and these are connected to each other by means of bars 3. The table top plate comprises two halves 4 and 5 and is provided with rims 6 which are divided in their central portion in the same manner as the top plate. The top plate has onits bottom surface ledges I, 8 attached thereto for guiding the plate halves during the separating thereof, said ledges being parallel to the bars 3 and situated close to them in such a way that the ledges 8, fastened to the plate half 4, are placed outside the bars 3, and the ledges 8, fastened to the plate half. 5, are placed inside of the bars 3. The bars 3 have on their both sides guiding keys 9 which engage the corresponding slots of the ledges 1, 8 for guiding.

The filling member II of the topplate is divided in its center, and both halves thereof are connected together bythe hinge 32. The upper part of the plate H is fastened to a square section bar l2 (see Fig. 2), the ends of which form the journals 33 rotatably mounted in two internal oblique cross-pieces l3. The filling member can rotate around the journals 33 when being moved from its stored position. The ends of the bars l2 are seated in the cross-pieces l3 at such a height with respect to the surface of the table that the filling member, when completely unfolded, is flush with the surface of the two table halves. When separating the table filling member ll, the handle I4 is grasped by the operator and moved in the direction of the arrow head indicated in Fig. 4 of the drawings. As the upper half of the filling member II is moved in the direction of the arrow shown in Fig. 4, the second half thereof slides upward on the inclined giszides [5 which are fastened to the cross-pieces The gap created table plate are separated from each other is to be filled in by the filling rim parts 16, which are fastened to the frames by a cross rail l1 and two lateral draw-bars [8, of which one pair, belonging to one frame and to the movable rim part 16 on one side of the table, is seated closely to the outside of the cross-pieces l3, and the other pair of draw-bars, belonging to the other frame and. to the rim part on the other side of the table, faces closely the foregoing pair of drawbars. The draw-bars 18 are mounted for sliding movement and are guided on the cross-pieces I3 by means of bolts l9 which enter short longitudinal slots 29 formed in the draw-bars.

The journals 33 at the ends of the rotary bar l2 of the fillingmember pass beyond the crosswhen both halves 4, 5 of the etions'.

pieces I3 and have attached on each side two eccentrics 2!, 34, of which the latter engages in vertical slots 22 provided in an enlarged portion of the draw-bars I8, as shown in Fig. 3. The eccentrics 2|, 34, with respect to each other, are set angularly 180, and set, with respect to the filling member II, in such a manner that when the filling member I I is in its collapsed position, as shown in Fig. 2, the rim parts I6 are drawn in.

When the filling member II, constructed. in accordance with Fig. 4, is unfolded, the eccentrics 2 I, 34 turn through 180 up to th'e'position shown in Fig. '7. In this manner, thedrawbars I8 are moved from each other and by this action push the movable rims I6 to their outer position by an amount 6 corresponding to double eccentricity of the eccentrics 2!. The movable rim part I6, as well as the rim 6, joined to the top plate halves, are provided with indexing conical pins 23 and corresponding holes 24 formed in the opposite parts thereof.

When separating the table, the topplate halves are first separated from each other a little more than corresponds to their mial position. Then the filling member II is tilted flush with the top plate and the movable rims I6, by the actionof the eccentrics 2!, 34, are moved to their outer posi- Then the top plate halves are moved together, the pins 23 enter into the holes 24 and index the intermediate rim parts I8 with respect to the rims 6 in order to make their surfaces flush.

-When the table length is to be diminshed, the filling member II is folded back inside, and the movable rims I6, connected with the draw-bars I8, are moved inside. The rims 6 are provided with a recess 25 to prevent them from colliding with the movable rim parts It.

In Figs. 9 and 10, anotherembodiment of the mechanism for shifting the rim parts I6 out, is shown. In this embodiment, the ends of the rotary bar I2 form bushings 2! passing through the cross-pieces I3, and bearwings 28, with pins 29. Arc-shaped rods 30 are articulated on'the pins 29, adjacent one end thereof, and the other ends of the rods 30 arefastened by bolts 3! to the draw-bars I8, whereto, in accordance with the disclosure in Figs. 1 to 8, inclusive,- are attached the movable rim parts I6.

By turning 'the wings 28, when tilting the fill- I ing'member II,the draw-bars I8 are set in motion and push out the 'rim parts I5 by an amount c.

It will be understood that the embodiments of this invention, herein described and illustrated, are offered only by way of example and that the invention is to belimited only by the scope of the following claims.

What -I claim is:

1. In an extension table having a frame, and two main table top members slidable longitudinally on the frame for separation at the center of the table and formed with depending side 4 rim portions; the combination of a movable rim part formed to fill in the gap between the side rim portions at each of the opposite sides of the table when the main table top members are separated, supporting means for each of said movable rim parts including laterally extending drawbars fixed at their outer ends to the related movable rim part and means slidably mounting .said lateral drawbars on the table frame for sion member being mountd on said support shaft so that said sections, when folded to confront each other and swung on said support shaft in one direction, are disposed in a stored position below the main table top members, and when swung in the opposite direction and unfolded are disposed flush with the main table top members, and actuating means driven by said support shaft and connected to said lateral draw bars operative to displace said movable rim parts laterally outward to positions flush with the side rim portions ofthe main table top members in response to swinging of said extension member and said support shaft in said opposite direction and to draw said movable rib parts laterally inward in response to swinging of said support shaft and extension member in said one direction to said stored position of the latter.

2. In an extension table: the combination according to claim 1, wherein said actuating means includes eccentrics fixed to said support shaft and rotatable with the latter, and vertical slots formed in said lateral drawbars to receive said eccentrics so that rotation of said support shaft effects lateral displacement of said lateral drawbars.

3. In an extension table: the combination-according to claim 1, whereinsaid actuatingmeans includes crank levers fixed to said support shaft and rotatable with the latter, and link members pivotally connected to said crank levers and to said lateral drawbars to translate the rotational movement of said shaft into lateral displacement of said drawbars.

VLADIMIR MARECEK.

REFERENCES CITED The following references are of record in the file er this patent:

UNITED STATES PATENTS Number Name Date 7 816,791 Goller Apr. 3, 1906 835,609 Goller Nov. 13, 1906 

